EP0678355A1 - Dispositif de convoyage pour scies à panneaux - Google Patents

Dispositif de convoyage pour scies à panneaux Download PDF

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Publication number
EP0678355A1
EP0678355A1 EP94500069A EP94500069A EP0678355A1 EP 0678355 A1 EP0678355 A1 EP 0678355A1 EP 94500069 A EP94500069 A EP 94500069A EP 94500069 A EP94500069 A EP 94500069A EP 0678355 A1 EP0678355 A1 EP 0678355A1
Authority
EP
European Patent Office
Prior art keywords
boards
board
lock
line
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94500069A
Other languages
German (de)
English (en)
Inventor
Manuel Cuenca Arasa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONSTRUCCIONES ESPANOLAS DE HERRAMIENTAS INDUSTRIALES SA
Original Assignee
CONSTRUCCIONES ESPANOLAS DE HERRAMIENTAS INDUSTRIALES SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CONSTRUCCIONES ESPANOLAS DE HERRAMIENTAS INDUSTRIALES SA filed Critical CONSTRUCCIONES ESPANOLAS DE HERRAMIENTAS INDUSTRIALES SA
Priority to EP94500069A priority Critical patent/EP0678355A1/fr
Publication of EP0678355A1 publication Critical patent/EP0678355A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
    • B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
    • B23D47/042—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work for conveying work to, or discharging work from, the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage

Definitions

  • the aim of the invention is a non accumulative lock system for board cutting machines specifically made for board cutting machines that are able to work in an automatic and continuous way from the board charger and connected or not to the initial cutting line.
  • the machine offered by CASADEI GIANFRANCO, S.P.A. is representative of the State of Technique. This machine bases its singularity in the independent motorized pushing system which is controlled by an only programmer, assisted by a computer.
  • the pushing system acts pushing the boards from a feeding table to a cutting line, that is, after an initial squaring operation and fixing the board to be cut, an immobilization of these boards is produced and then a cut right in the right place is made.
  • the first improvement establishes an initial measurement which will be repeated or not in a second cut. In any case, it will be an addition to the first. That is, if in the first cut an A width is programmed with a T tolerance, more/less 0.2 milimetres, in the second cut, being the A measurement or other, the tolerance would be, although not necessarily, T multiplied by two.
  • the maximum admissible tolerance in a board cut is more or less 0.2 mm and so the accumulative system used by the referred machine. If such an initial error is produced, after four cuts it would easily drive to an error for an excess of 4 mm, which would need a later repairing by a milling cutter.
  • the invention has to provide the board cutting machine, specially with boards covered with a surface of stratified plastic, with a non accumulative lock system in which each measurement starts from zero and therefore the tolerance in the measurement is constantly kept.
  • the machine is fed through the fore part and the measure of the piece to be cut is given from the cutting line to a stopping line located in the rear part.
  • the board feeding is given through mechanical systems, specially from a clutch tyre that takes the boards from a lifting platform and, over the machine bench, makes them go under the cutting deck that acts also as a board stopper.
  • the lifting platform technique is known and used in this sector in different installations of automatic and semiautomatic cut.
  • This type of platforms are used in the graphic industry to provide sheets to a printing machine.
  • the tyre clutch or cluthes are disposed in transversed decks to the boards to be cut and, according to the program, they slide, attacking two or more boards simultaneously piled up to the cutting line.
  • a conventional cutting line consists of a disc saw that goes through a guide on a cart which simultaneously makes a cut of a regulated depth that coincides with the track left by the milling cutter, leaving an empty space in the place where the circular sheet of the saw will be shown in a way that the exit of the tool will not find stratified plastic and therefore the cut will be clean without lateral notch.
  • the milling cut is produced at the same time as the cutting while the boards are immobilized.
  • the invention presented inside of this type of machines, requires as a fundamental condition the feeding on one side of the cutting line and, on the other, the lock.
  • two or more locks are established, preferably, but not always, a line of four or six locks, each of them including a mandible clamp with a tyre execution system, although this last point is not significant. Only a certain firmness in the fixing is needed and, at the same time, a certain softness so as not to affect the material, marking it, and therefore, leaving it useless for its function.
  • All the locks are linked to a lock carrier, which slides in a way able to be modified, but always referred to the distance from the edge next to the locks of the cutting line, to the lock front, in a way that in all cases the boards arrive to the reception zones, contact the locks, are tied up and then are carried tho the cutting measurement, transferred outside once they are cut, and set free to be transferred to a lateral cutting station or piled up for later operations of mechanism and/or ending.
  • the numerical programmer control system with a microprocessor, will be the one charged of the activation of the feeding clamps of boards, establishing the locks, putting the exact measurement between the cutting sheet and the board edge and unchaining the operating rutine according to the program sequence.
  • This type of control systems are supplied in the market with Intel microprocessors, a trade mark of INTEL CORPORATION, with TEXAS INSTRUMENTS microprocessors or any other integrated circuit manufacturer that are part of circuits which guide different static parts, and essential to the machine, they are just used in it and are offered in the catalogue with operative specifications, the reason for which they will be mentioned as elements without special mention to their architechtural appearance, configuration and performance.
  • the non accumulative lock system for board cutters of the type cutter with a milling machine emptying a space coinciding with the exit of the tool, which supported by a cart that goes through a guide under which the cutting boards are disposed, consists of the establishment on the opposite side of the cutting line through which the boards are provided, of a prehensile lock line, able to stop those boards.
  • the stopping of the boards is made in the front part opposite to the front part through which the clamp of a conventional board feeding pushes the boards to the cutting line, and under the guide through which the tools carrier cart slides until its front leans against the lock line located behind the machine.
  • the lock line can move mechanically, getting closer or far according to the cutting line in order to establish, each time it is going to cut, the distance between this cutting line and the edge of the boards in front of the clamp edge pushing the board feeder.
  • the lock front is conventionally guided by a microprocessor program whose point of reference is always from the cutting line till the edge of the board which is in front of the locks, in a way that, for each case it starts from zero tolerance to establish the measurement in which the piece will be cut.
  • the lock line is constituted by series of locks. Each one includes an inferior mandible which is under the board level or at the level of the boards, and a superior mandible which is mobile and acts as a pression element, fixing the boards with the locks that go forwards or backwards to the cutting line regarding their position and according to the preestablished cutting program.
  • the lock group will be placed in a mandible carrier support which moves on the guides that are in an adecuate position not to interfere in the level of the boards settlement, before and after the cut.
  • Figure.1 appears the view of an accumulative system of locks for board cutters joined to a conventional board cutting machine.
  • the platform (1) lifts the number of boards (3) wished, usually three, to the adecuate hight so that the sliding clamps (2) can displace them, moving along the deck guides (5) until they surpass the bench (7) of the whole board cutting machine.
  • the locks (8) placed in the opposite part of the cutting line (6) in the cutting tool are located in a way that they receive the board and they lean their frontal part on the lock so that they remain vertically at the same level.
  • the locks (8) have inferior mandibles on which lay the boards (3).
  • a superior mandible (10), mobile, will close the lock and exert the necessary pression in order to stop the boards.
  • the front part (12), that incorpores the mandibles in its mandibles carrier (13), will move in its guides that will be in an sub-level or over-level, that is under or over the board (3) line level (20), until it succeeds in producing this movement between the lock front (8) and the cutting line (6).
  • the distance between the cutting line (6) and the lock (8) will be always known by the programmer (11), as for example with the exact knowledge of the use of the encoder, a highly precise electronic instrument, integrated in a cogged or friction wheel, or the activation of reference sensors. In any case it is not a significant technique to the invention development.
  • a bus line (16) between the measurement instrument (15) and the programmer (11) keeps this one in a constant control over the system, considering as prior the distance between the cutting line and the front part formed by the locks.
  • the lock group After the cut, the lock group, once set free from the clamps, the cut pieces go backwards, behind the programmed measurement according to line (23).
  • the lock group waits until it receives again the boards (3) while the cut pieces are pushed (1) over the rolls (24) to the other cutting machine in a perpendicular position which is marked by line (18) that, following line (19), will receive the pieces and cut them transversely, as it has been explained before and being helped by the same elements.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
EP94500069A 1994-04-18 1994-04-18 Dispositif de convoyage pour scies à panneaux Withdrawn EP0678355A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94500069A EP0678355A1 (fr) 1994-04-18 1994-04-18 Dispositif de convoyage pour scies à panneaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94500069A EP0678355A1 (fr) 1994-04-18 1994-04-18 Dispositif de convoyage pour scies à panneaux

Publications (1)

Publication Number Publication Date
EP0678355A1 true EP0678355A1 (fr) 1995-10-25

Family

ID=8218161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94500069A Withdrawn EP0678355A1 (fr) 1994-04-18 1994-04-18 Dispositif de convoyage pour scies à panneaux

Country Status (1)

Country Link
EP (1) EP0678355A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143979A (zh) * 2013-04-02 2013-06-12 济南天辰铝机制造有限公司 铝型材锯切加工中心上料机构
CN113828851A (zh) * 2021-08-26 2021-12-24 东风本田汽车有限公司 一种钢平台液压油管专用夹具及其切割装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111256A1 (de) * 1980-05-21 1982-04-01 Schelling & Co, 6858 Schwarzach, Vorarlberg "einrichtung zum buntaufteilen von plattenfoermigen werkstuecken"
EP0184642A1 (fr) * 1984-12-08 1986-06-18 Erwin Jenkner Procédé pour produire des panneaux avec forages, de préférence en bois ou matière similaire, et installation pour exécuter ces procédés
EP0196629A2 (fr) * 1985-04-03 1986-10-08 GIBEN IMPIANTI S.p.A. Dispositif de déplacement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111256A1 (de) * 1980-05-21 1982-04-01 Schelling & Co, 6858 Schwarzach, Vorarlberg "einrichtung zum buntaufteilen von plattenfoermigen werkstuecken"
EP0184642A1 (fr) * 1984-12-08 1986-06-18 Erwin Jenkner Procédé pour produire des panneaux avec forages, de préférence en bois ou matière similaire, et installation pour exécuter ces procédés
EP0196629A2 (fr) * 1985-04-03 1986-10-08 GIBEN IMPIANTI S.p.A. Dispositif de déplacement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143979A (zh) * 2013-04-02 2013-06-12 济南天辰铝机制造有限公司 铝型材锯切加工中心上料机构
CN113828851A (zh) * 2021-08-26 2021-12-24 东风本田汽车有限公司 一种钢平台液压油管专用夹具及其切割装置
CN113828851B (zh) * 2021-08-26 2023-08-29 东风本田汽车有限公司 一种钢平台液压油管专用夹具及其切割装置

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